Hi,
after reading this article I tried to chroot in a directory named /test. /test/bin/sh existed but chroot said "/bin/sh: No such file or directory".
The article says, that you have to cp some libraries to /test/lib/ but how you can find out which libs to cp it doesn't tell.

The solution to this problem, into which you may also run, is to do a "ldd /test/bin/sh" and cp the resulting libraries to /test/lib/.